# Degree of the residue class extension

Quick question.

If a prime is unramified in a number field why is it that the degrees of the residue class extensions of its prime factors are equal?

Thanks

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no worries, think i understand why –  daisy Apr 14 '12 at 10:54
I don't think the result is true, however in Galois extensions it is true. –  fretty Apr 14 '12 at 11:54